Finite Group Databasebeta

C5×#12684 #11935404

order1280
nilpotency class3
isoclinismisoclinic class of B(4,𝔽2)
automorphism?
homologyAbelianization (H1) = C22×C5×C8 · Schur multiplier (H2) = C25

Aliases

direct productC5×#12684

Subgroups

subgroupG/H
centerC5×C8#120
commutatorC23C22×C5×C8
Frattini, cosocleC22×C8C23×C5
socleC2×C5#1779
prime radicalC5×#585C4
LCSG ▷ C23 ▷ C2 ▷ C1
UCSC1 ◁ C5×C8 ◁ C22×C5×C8 ◁ G

894 conjugacy classes of subgroups; only the 210 normal subgroups are shown.

normal subgroups only

This group has 894 conjugacy classes of subgroups — too many to draw. Only its 210 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 69
transitive degreeμt(G) = 320

A minimal faithful permutation representation — 3 generators on 69 points:

(1,2,3,4,5)(6,7,10,15,11,16,25,35,12,17,26,36,27,37,48,58)(8,13,20,30,21,31,44,54,19,29,42,52,43,53,63,67)(9,14,23,33,24,34,47,57,22,32,45,55,46,56,64,68)(18,38,40,59,41,60,62,69,39,28,49,50,61,51,65,66);(6,8)(7,13)(9,18)(10,20)(11,21)(12,19)(14,28)(15,30)(16,31)(17,29)(22,39)(23,40)(24,41)(25,44)(26,42)(27,43)(32,38)(33,50)(34,51)(35,54)(36,52)(37,53)(45,49)(46,61)(47,62)(48,63)(55,59)(56,60)(57,66)(58,67)(64,65)(68,69);(6,9)(7,14)(8,18)(10,23)(11,24)(12,22)(13,28)(15,33)(16,34)(17,32)(19,39)(20,40)(21,41)(25,47)(26,45)(27,46)(29,38)(30,50)(31,51)(35,57)(36,55)(37,56)(42,49)(43,61)(44,62)(48,64)(52,59)(53,60)(54,66)(58,68)(63,65)(67,69)

Conjugacy classes & character table

320 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1280, 5672);